Weighing my options

Do you know of any cheap laptop or netbook for sale? I really want to buy my own laptop or netbook because I want to stay online and accomplish my online tasks even I’m outside the house or office. I heard acer laptop computers are sold at reasonable price so I’m planning to check this out when I visit the mall this weekend.

Also a  friend of mine recommended refurbished laptops, she said they are much cheaper and good options for those who lacks budget just like me. Well, I want to study this option. Do you think it is a good idea to buy refurbished laptops?